Sadly the MX family of mousen need the Logitech Software for customisation. It's not saved on the mouse, so if Logi Options is not running the mouse operates in default state, with no custom button mappings, etc.
it works fine for me on windows, only annoyance is google maps, switching to street view, one wheel rotation unit acts like 15, so switches back and forth uncommanded to street mode and out
All I wanted to do is turn off the rainbow LEDs
Next time I get a new mouse I'll try Solaar.